Brake.



Patented v1an. 7,1902.

' BRAKE.

(Applicatin Bled July 80, 1901.)

(Ilo Ilndel.)

A WITNESS-Es.' L @MQW/m@ ment as applied Vto a motor-carriage.

UNITED STATES PATENT THOMAS GOATER BLATCH, HAZLETON, PENNSYLVANIA,

BRAKE.

SPECIFICATION forming part of Letters Patent No. 690,692, dated January '7, 1902.

Application tiled July 30,1901. Serial No. 70,235. (No model.)

To all whom it may concern:

Be it known that l, THOMAS GOATER BLATCH, a citizen of the United States, and a resident of Hazleton, in the county of Luzerne and State of Pennsylvania, have invented a new and Improved Brake, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved brake which is simple and durable in construction, very effective in operation, and more especially designed for use on locomobiles, mobile carriages, and other vehicles.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is representedA in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure lis a front elevation of the improve- Fig. 2 is a side elevation of the same, and Fig. 3 is an inverted plan View of the improvement.

A brake-band A of steel or other suitable material and encircling the brake-wheel B of the motor or other driven part is attached at its middle by brackets C to a clamp D, pivoted or fastened on a part E of the carriage.

. On the free ends of the brake-baudA are secured brackets G G', of which the bracket G is vpivotally connected at H with one end of a lever H, connected by a link I with an op` erating-lever (not shown) and under the control of the operator. The lever H is L-shaped and is pivotally connected at H2 with a link J, pivoted to the bracket G above mentioned.v

pull exerted on the lever H by the liukI and the actuating-lever. It is obvious that when the lever is caused to swing as described the pivot H2 of the link J is the fulcrum for the saidlever to swing on, and as the pull on the link I is in the direction ot' the arrow'a' the lever H exerts a pullon the link J and bracket G,the lever then swinging on the pivot H as the fulcrum to draw this end of the brakeband A in engagement with the wheelB and toward the other end of the brake-band already in contact with the wheel.

It is understood that by the arrangement described the free ends of the brake-band A are simultaneously drawn toward each other when the lever H is actuated for applying the brakes, so that the brake wheel is iirmly gripped and a proper braking takes place. Upon releasing the pull on the link I the brake-band A immediately opens, as the return swinging of the lever H causes the contact with thebrake-wheel when the lever- H is actuated. The brackets G G' not only tend to draw the ends of the brake-band toward each other,`but also press the ends of the brake-band in a direction toward the center of the brake-wheel.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A brake, comprising a brake-band suspended by its middle, provided with loose ends and bent intoasubstantially cylindrical form, radially-disposed brackets provided with arc-shaped bases and mounted' upon said free ends, a lever ,l provided with a bent portion pivoted directly upon the extreme outer end of one of said brackets, and a link pivoted upon the extreme outer end of the other bracket and upon the said lcver,the arrangement being such that in applying the IOO brake the link and the bent portion of said lever move toward each other and toward a common dead-center.

2. A brake, comprising a brake-band suspended by its middle, provided With loose ends and bent into a substantially cylindrical form, radially-disposed brackets provided with arc-shaped bases and mounted upon said free ends, a lever pivoted upon one of said brackets at a point substantially in line with the center of the base thereof and with the center ot the brake-band, a link pivoted at one end to said lever and at the other end to the other bracket, at a point substantially in line with the center of the base of said bracket, and the geometrical center of said brake-band.

3. A brake, comprising a brake-band suspended by its middle, provided with loose ends and bent into a substantially cylindrical form, brackets comprising radially-disposed stems mounted centrally upon arc-shaped bases, said bases being secured to the ends of said brake-band, a lever provided with a bent arm, said arm being pivoted upon the extreme outer end of one of the stems, at a point radially in line with the center of one of said arc-shaped bases and the center of said brake-band, and a link pivoted at one end to said lever and at the other end to the extreme outer end of the other stem, at a point radially in line with the center of the arc-shaped base thereof and the geometrical center of said brake-band, the arrangement being such that said link and the bent portion of said lever move to and from the lino constituting a mutual dead-center.

4. A brake-band suspended by its middle, provided with loose ends and bent into a substantially cylindrical form, radially-disposed brackets mounted upon said loose ends, a substantially L-shaped lever pivoted at one of its ends uponthe extreme outer end of one of said brackets and also pivoted to said lever intermediate ot' the ends thereof, and a rod pivotally connected with the other end of the said lever for the purpose of actuating said brake, the arrangement being such that the outerends of said brackets are drawn toward each other by a progressive leverage due to the tendency of the pivots of the lever to aline with the pivots of the said brackets.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS GOATER BLATCH.

Witnesses:

Jos. H.. JONES, FRANCIS H. BLATCH. 

